Naz worked for the Marines in Afghanistan as an interpreter. For his work, the US government gave him a visa. But the promises made by President-elect Donald Trump have him worried about his future, and the future of all refugees.
Deepak Singh grew up in Lucknow, India, thinking Indians were the good guys and Pakistanis the bad guys. Now that he's moved to the United States and finally met people from Pakistan, he sees things differently.
The new NOVA special, "Vaccines: Calling the Shots," explores the lingering global resistance to vaccination campaigns. Case studies from around the world explain just how bad the impact can be when groups opt out of childhood shots.
In Nepal, as many as a quarter of newborn deaths could be prevented with the use of an inexpensive antiseptic ointment, routinely used after childbirth in the US. The challenge is getting it to the women who need it in time.
In New York City, like in other parts of the US, some students spend their break digging into algebra equations, hoping to ace a test that will get them into a top public high school. But some question whether a single test unfairly leaves some students out.